U.S. Steel says preparations for a routine maintenance task may have led to an explosion at a U.S. Steel coal-processing plant near Pittsburgh that left two dead, sent 10 to hospitals and damaged part of the sprawling facility.

The Trump administration on Friday widened the reach of its 50% tariffs on steel and aluminum imports by adding hundreds of derivative products to the list of goods subject to the levies.

Two people are dead and 10 others injured after an explosion at U.S. Steel’s Clairton Coke Works near Pittsburgh. The recovery operation has ended, and the cause is under investigation.

Donald Trump is meeting face-to-face with Russian President Vladimir Putin in Alaska on Friday for a high-stakes summit that could determine not only the trajectory of the war in Ukraine but also the fate of European security.